Applicare la formula: $\frac{a}{\frac{b}{c}}$$=\frac{ac}{b}$, dove $a=42^{10}$, $b=42^3$, $c=42^4$, $a/b/c=\frac{42^{10}}{\frac{42^3}{42^4}}$ e $b/c=\frac{42^3}{42^4}$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=42^3$, $a^m=42^{10}$, $a=42$, $a^m/a^n=\frac{311169642^{10}}{42^3}$, $m=10$ e $n=3$